Conveyer



June 24, 1930. J. A. BETTIN 1,766,052

CONVEYER Filed Aug. ,6 1,927 5 SheetsSheet 1 In 0622 for John .19. Bert/n J. A BETTIN June 24, 1930.

I CONVEYER Filed Aug. 6, 192'? 5 Sheets-Sheet 2 J. A. BETTIN June 24, 19-30.

GONV-EYER Filed Aug. 6 1927 3 Sheets-Sheet 5 Patented June 24,

man a e sraras mm c rries JOHNA. BETTIN, or rosnnenLEs, CALIFORNIA,

1 Los new-ins, QALIFORNIA v GONYEYER' w Application filed August a, 1927. Js eriai No. 211,027.

This invention relates to conveying, hoist- 1ng and elevatlngmachinery and .the like; tllfllIlVQDtlOIl consisting of certain lmprovements in the structure anddesign ofama'te rial handling device of the chainbucket ty e.

Heretofore so far asI am aware devices of the type and character herein referred to have consisted of a carrier chain or belt or the. like with buckets or scoops mounted andcarried thereon, such buckets or scoops being usually secured to the chain or belt 1n such a manner and position as to over hang from the chain or belt. Sucha design a novel design wherein such'difliculties are -tion wherein I and construction is essentially weak as it puts. the load, or strain resulting from excavating or'load picking up. operations, at a considerable distance fromthe point of support of the bucket orscoop. I

1 His an objectof my invention to provide completely overcome, and furthermore to provide a construction wherein the bucket or scoop forms an-operativezelement of the chain 'or belt construction, in .such a manner or hoisting mechanism embodying my invention; v m Fig.-=2 is a front elevation of the same;

F ig. 3 is an enlarged sectional on .line 3-3 of Fig. 2;

i Fig. 4 is a section on line of Fig. 3; Fig. 5-is a fragmentary, side elevation of conveying or hoisting mechanism showing a modified construction.

Fig. 6 is a front shown in Fig.5;

"the scoops or buckets 16, 'recessesbeing thus dependent upon the cross: I sectional configurationof the scoops. In the 9D "present instance I have shown the scoops as elevation of the parts bucket. e

Fig. 8 is a plan of thesa'me; and

ig. 9 is an enlarged fragmentary front elevation with parts in section;

It will be understood from what follows that my invention may, take many specific forms; that the advantages and utilities of my invention are applicable tomechanisms which functlon only as materlal conveyers aswell as to'mechanisms which function ad ditionallyg'as excavators or as hoists which at thelower end. However the full features of my-invention are best explained with reference to a. conveyer 5 pick up material of the hoist or excavator variety and the invention will therefore-be specifically "ex-- plained in that form, although without'necf essary limitation thereto.

The typical form of mechanism; shown in 7 I the drawings embodies an upper pair of drivinglsprockets 10 and a lowenpairof idlersprockets or rollers 11, the shafts of' these: pairs of sprockets being structurally connected bya framing 12 .providedywith a all as will be welliunder- I need of further detailedv L take-up "device 13, stood, without the explanation The driving sprockets 10 will preferably be provided with teeth l lof suitable form for drivingthe conveyer-chain, but the sprockets or rollers 11 need not, be I provided with driving teeth, unless they are also utilized I as driving sprockets; In a typical installation the elements 11 will idlers, but will preferably 1 constitute only 7 be providedwith properly'spaced peripheral recesses 15 to, take and properly support the shape. of "the being-substantially circular in cross 'secti0n-- al form; but it will be understood that these .scoops maybe of any desired form and size, both as to cross section and as to their longitudinal extent. V

It is a characteristic feature ofmy invention that these scoops 16 formv in effect elements of the composite chain or belt which comprises the'material carrying unitof the Assre'non TQ EMMA IBEJ'ITIN, on

Fig; .is an enlarged. end view of a single link 20 is pivoted to i or trunnion v forcing end block 7 the 'endZO of a linkw20 (see Fig! 4:) and this, in the preferred fconstruction shown in the drawings, is done by rivetir'ig'with rivets 23 which extend throughthe end'wall ing back sprockets or rollers.

I upon any suitable ways or-guides', stance the guides or ways 30 as shown in I Q in the drawings device. In'the simple form shown in Figs.

1 4 the composite. chain isimade up of two series of side links 20. One end of each the other end of the next adjacent li k on a suitable pivot pin such asthe pivot pin 21; This pivot pinQl in the preferred construction here illustrated extends not only through both the links but also extends through re inforcing end block 22 of the scooplt, substantially in line with the central horizontal axis thereof. The scoop .16 withlits rein- 22 is rigidly attached to 2a of the-scoopfihroughthe reinforcing end block 22 and throughportion 20% of the'link 20. However, any form of connection will suilice that prevents'the bucket from rotat- 4 from its digging or pick-up position. Each end curely and rigidly attached to one end of a link 20 and each end of the scoop is vrein- V forced strengthened by the endblock ,7 22 where it ridesupon the sprockets or rollers, as the idling sprocketll shown in part in Fig; i. Theibody of the scoop 16' itself may bear uponthe sprocket or roller; but it I is preferred .to "ive it a reinforcing as described 'at its end so" that the body oft-he scoop need not'be constructed of 'any heavier material than is necessary for the service to be performed. :flhe reinforcing end block 22 may be regarded as a part of the scoop; and whether or not such a reinforcing end 'block'is used it will be seen that the scoop is ,dire'ctly'supportedfrom the sprocket or roller,'and forms in: effect the element of the chain comb nation which directly rides the The pivotal pointof connection between adjacent links, 'at the pin 2l,'is concentric withthe scoop and its reinforcing end block 22,- as best shown in The material carrying course of the coinposite chain maybe supported, ifdesired,

for in- Fi fl. V

buppose nowthat "the mechanism shown is'thus supp-Ortedin a manner such asto re-,

lieve tofa very large degree all the strains to which an ordinary scoopv is subjected.

During the scooping action the scoopis prerexcavation r pick-up qof transmitted directly through the scoop to i of the'scoop 16 isflthus se vented from rotating about its own axis by reason of its rigid attachment to the links V 20. But the strain thus exerted on the links is muchless than is the case in any ordi nary construction,

each scoop and not to the'backside-of each scoop, as 'is' usually the case. strain of keeping the-scoopsfroin rotation is the only strain placed upon" the links,"

all of the direct pressures generated in the material being the idlers upon which the scoops are directly supported.

In Figs. 5 to 9 I illustrate the sarne general assembly as before described butwith a bucket or scoop I design in modified detail." llere the bucket has a body l6 vith l'faces along its edge and ends at 16*, lfi for' the mounting of digging or excavating teeth 16 and 16 'and is also provided at its ends with offset or projecting cylindric faces 50 which form the surfaces that bear upon the j a faces of the-sprockets and idlei s'. The'ends of the buckets are so made u and designed I 7 that the ends are considerably 'reinforcedb same formation that forms the: cyfaces 50. With these bearing faces thus formed, the shape of the'bucket body by the lindric itself maybe anything desired, atypical form being shown in the drawings.'*

The two end faces 5l-of the bucket may then be provided with a raised seat-521113011 which one end of a link 20 isseated,

beingheldby a bolt53. Togprevent the 1 bucket turning back with relationtothe 1 link end 20 theseat=52 may beprovi'ded with a sidelug 54 against which one edge of the link willrest. The extreme end of this linkextends' to apoint opposite the center'axis'of the bucket (the center of the cylindric surface) andhas a'hole 55' adapted toreceive one end 56 ofa hub or boss on the adjacent. end '20 into a hole 55 in the end of thebucketQ Thus the end 20 of-that link is pivotally connected with the bucket and with the end 20 of the'first' inentionedflink; It will be seen from an inspect-ion of Fig.9 how the 7 formation allows linkend 20 to "overlie-link end. 20 so that link end 20 lies between link end 20 and theendsurface 51 of the 7 a bucket. A bolt'57 may be usedto holdth'efi J parts together, not necessarily to form a.

pivot but only for the purpose of preventlng any accidental or forceable displace- V ment of the parts 7 From a consideration of the modified 1:"

structure it will be understood that the in vention is not limited to any particularrel'ative design or shape of parts but may be applied to many varyingspecificl designs.

It Wlll also be understood that-the function because in my oonst-ruction the links are attachedtothe center of 'And the i v of the adjacent link 20 The other side 5630f this hub or boss its 7 performed by rigidly attaching the bucket to one end of the link is primarily that of preventing the bucket from backing around under strains of digging or picking up Ina-- teria1-for instance to prevent a left hand rotation in '3 or Fig. 7. The specific construction so far described will prevent relative rotation of the bucket in either direction; but for instance if in Fig- 7 the bolt 53 is removed then it will be seen that the lug 54 will prevent left hand rotation of the bucket relative to link end 20 but will allow relative right hand rotation. And in some cases this may be desired for the purpose of tipping thebucl'ret'to facilitate dis charge. I I

I claim: V 1. A conveyer mechanism embodying, in combination, a sprocket-shaped rotating member and a composite conveyer I chain adapted to pass around that member, said composite conveyer chain comprising scoops contacting directly-with the rotating member at the recessed portions thereof, and interconnecting links between the scoops, each scoop being non-rotatively connectedto one 7 end-of an interconnecting link.

2. A conveyer mechanism embodying, in combination, a sprocket-shaped rotating member and a composite conveyer chain adapted to pass around that member, said composite conveyer chain comprising horizontal scoops contacting directly with the rotating member at the recessed portions thereof, and interconnecting links between the scoops, said interconnectinglinks being pivotally connected together substantially at i the centralhori'z'ontalaxis, of thescoops, and

each scoop being non rotatively connected to one end of an interconnecting link.

3. A conveyer' chainqconstruction embodying the combination of a plurality oftrans- I versely extending scoops',and a plurality of pivotally interconnected longitudinally extending links in two sets, one at each end of'the scoops and at the outside'thereof, the A links of each set being 'pivotally intercon- M nected substantially on the transverse cenrigidly connected with anend of one of the links which are so pivotally interconnected at its axis, the end of each scoop being reinforced and presenting a bearing surface adapted to ride arotating member.

5. A conveying mechamsm, comprising in combination a pair of transversely spaced rotating members, a plurality of transversely extending scoops, comprisingend walls provided with reinforcing formations" adapted to ride the rotating members, the scoops being thereby directly supported upon the, rotating members, and-twosets of longitudinally extending "and pivotally interconnected links, the links of each set being pivotally interconnected} at points at the end of and substantially on the transverse central axis ofthe scoops. a

6. A conveying mechanism, comprising in combination a pair of transversely spaced rotating members, a plurality of transversely extending scoops comprising end walls provided with reinforcing formations adapt edto ride the rotating members, the scoops being thereby directly supported upon the rotating members, and two sets oflongitudinally extending arid zpivotally interconnect-' 5 ed links, the links of each set being pivot-- ally interconnected at points at the end of, and substantially on the transverse central axis of the scoops, andan end ofone such link being non-rotatively connected with an end of a scoop.

In Witness that -I claim the foregoing I' i have hereunto subscribed my name this 8 day of July, 1927, I e 1 7 JOHN A. BETTIN. 

